src/scripting/functions.cpp

   1 //  $Id$
   2 //
   3 //  SuperTux
   4 //  Copyright (C) 2006 Matthias Braun <matze@braunis.de>
   5 //
   6 //  This program is free software; you can redistribute it and/or
   7 //  modify it under the terms of the GNU General Public License
   8 //  as published by the Free Software Foundation; either version 2
   9 //  of the License, or (at your option) any later version.
  10 //
  11 //  This program is distributed in the hope that it will be useful,
  12 //  but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 //  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 //  GNU General Public License for more details.
  15 //
  16 //  You should have received a copy of the GNU General Public License
  17 //  along with this program; if not, write to the Free Software
  18 //  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  19
  20 #include <config.h>
  21
  22 #include <memory>
  23 #include <stdio.h>
  24 #include <string>
  25 #include <squirrel.h>
  26 #include <sqstdio.h>
  27 #include "textscroller.hpp"
  28 #include "functions.hpp"
  29 #include "game_session.hpp"
  30 #include "tinygettext/tinygettext.hpp"
  31 #include "physfs/physfs_stream.hpp"
  32 #include "resources.hpp"
  33 #include "gettext.hpp"
  34 #include "log.hpp"
  35 #include "mainloop.hpp"
  36 #include "worldmap/worldmap.hpp"
  37 #include "world.hpp"
  38 #include "sector.hpp"
  39 #include "gameconfig.hpp"
  40 #include "object/player.hpp"
  41 #include "object/tilemap.hpp"
  42 #include "main.hpp"
  43 #include "fadeout.hpp"
  44 #include "shrinkfade.hpp"
  45 #include "object/camera.hpp"
  46 #include "flip_level_transformer.hpp"
  47 #include "audio/sound_manager.hpp"
  48
  49 #include "squirrel_error.hpp"
  50 #include "squirrel_util.hpp"
  51 #include "time_scheduler.hpp"
  52
  53 namespace Scripting
  54 {
  55
  56 int display(HSQUIRRELVM vm)
  57 {
  58   Console::output << squirrel2string(vm, -1) << std::endl;
  59   return 0;
  60 }
  61
  62 void print_stacktrace(HSQUIRRELVM vm)
  63 {
  64   print_squirrel_stack(vm);
  65 }
  66
  67 int get_current_thread(HSQUIRRELVM vm)
  68 {
  69   sq_pushobject(vm, vm_to_object(vm));
  70   return 1;
  71 }
  72
  73 void wait(HSQUIRRELVM vm, float seconds)
  74 {
  75   TimeScheduler::instance->schedule_thread(vm, game_time + seconds);
  76 }
  77
  78 void wait_for_screenswitch(HSQUIRRELVM vm)
  79 {
  80   main_loop->waiting_threads.add(vm);
  81 }
  82
  83 void exit_screen()
  84 {
  85   main_loop->exit_screen();
  86 }
  87
  88 void fadeout_screen(float seconds)
  89 {
  90   main_loop->set_screen_fade(new FadeOut(seconds));
  91 }
  92
  93 void shrink_screen(float dest_x, float dest_y, float seconds)
  94 {
  95   main_loop->set_screen_fade(new ShrinkFade(Vector(dest_x, dest_y), seconds));
  96 }
  97
  98 std::string translate(const std::string& text)
  99 {
 100   return dictionary_manager.get_dictionary().translate(text);
 101 }
 102
 103 void display_text_file(const std::string& filename)
 104 {
 105   main_loop->push_screen(new TextScroller(filename));
 106 }
 107
 108 void load_worldmap(const std::string& filename)
 109 {
 110   using namespace WorldMapNS;
 111
 112   main_loop->push_screen(new WorldMap(filename));
 113 }
 114
 115 void load_level(const std::string& filename)
 116 {
 117   main_loop->push_screen(new GameSession(filename));
 118 }
 119
 120 static SQInteger squirrel_read_char(SQUserPointer file)
 121 {
 122   std::istream* in = reinterpret_cast<std::istream*> (file);
 123   char c = in->get();
 124   if(in->eof())
 125     return 0;
 126
 127   return c;
 128 }
 129
 130 void import(HSQUIRRELVM vm, const std::string& filename)
 131 {
 132   IFileStream in(filename);
 133
 134   if(SQ_FAILED(sq_compile(vm, squirrel_read_char, &in,
 135           filename.c_str(), SQTrue)))
 136     throw SquirrelError(vm, "Couldn't parse script");
 137
 138   sq_pushroottable(vm);
 139   if(SQ_FAILED(sq_call(vm, 1, SQFalse, SQTrue))) {
 140     sq_pop(vm, 1);
 141     throw SquirrelError(vm, "Couldn't execute script");
 142   }
 143   sq_pop(vm, 1);
 144 }
 145
 146 void add_key(int new_key)
 147 {
 148   player_status->set_keys(new_key);
 149 }
 150
 151 void debug_collrects(bool enable)
 152 {
 153   Sector::show_collrects = enable;
 154 }
 155
 156 void debug_draw_fps(bool enable)
 157 {
 158   config->show_fps = enable;
 159 }
 160
 161 void debug_draw_solids_only(bool enable)
 162 {
 163   Sector::draw_solids_only = enable;
 164 }
 165
 166 void save_state()
 167 {
 168   using namespace WorldMapNS;
 169
 170   if(World::current() == NULL)
 171     throw std::runtime_error("Can't save state without active World");
 172
 173   if(WorldMap::current() != NULL)
 174     WorldMap::current()->save_state();
 175   World::current()->save_state();
 176 }
 177
 178 // not added to header, function to only be used by others
 179 // in this file
 180 bool validate_sector_player()
 181 {
 182   if (Sector::current() == 0)
 183   {
 184     log_info << "No current sector." << std::endl;
 185         return false;
 186   }
 187
 188   if (Sector::current()->player == 0)
 189   {
 190     log_info << "No player." << std::endl;
 191         return false;
 192   }
 193   return true;
 194 }
 195
 196 void play_music(const std::string& filename)
 197 {
 198   sound_manager->play_music(filename);
 199 }
 200
 201 void play_sound(const std::string& filename)
 202 {
 203   sound_manager->play(filename);
 204 }
 205
 206 void grease()
 207 {
 208   if (!validate_sector_player()) return;
 209   ::Player* tux = Sector::current()->player; // Scripting::Player != ::Player
 210   tux->physic.set_velocity_x(tux->physic.get_velocity_x()*3);
 211 }
 212
 213 void invincible()
 214 {
 215   if (!validate_sector_player()) return;
 216   ::Player* tux = Sector::current()->player;
 217   tux->invincible_timer.start(10000);
 218 }
 219
 220 void mortal()
 221 {
 222   if (!validate_sector_player()) return;
 223   ::Player* tux = Sector::current()->player;
 224   tux->invincible_timer.stop();
 225 }
 226
 227 void shrink()
 228 {
 229   if (!validate_sector_player()) return;
 230   ::Player* tux = Sector::current()->player;
 231   tux->kill(tux->SHRINK);
 232 }
 233
 234 void kill()
 235 {
 236   if (!validate_sector_player()) return;
 237   ::Player* tux = Sector::current()->player;
 238   tux->kill(tux->KILL);
 239 }
 240
 241 void restart()
 242 {
 243   if (GameSession::current() == 0)
 244   {
 245     log_info << "No game session" << std::endl;
 246     return;
 247   }
 248   GameSession::current()->restart_level();
 249 }
 250
 251 void whereami()
 252 {
 253   if (!validate_sector_player()) return;
 254   ::Player* tux = Sector::current()->player;
 255   log_info << "You are at x " << tux->get_pos().x << ", y " << tux->get_pos().y << std::endl;
 256 }
 257
 258 void gotoend()
 259 {
 260   if (!validate_sector_player()) return;
 261   ::Player* tux = Sector::current()->player;
 262   tux->move(Vector(
 263           (Sector::current()->solids->get_width()*32) - (SCREEN_WIDTH*2), 0));
 264   Sector::current()->camera->reset(
 265         Vector(tux->get_pos().x, tux->get_pos().y));
 266 }
 267
 268 void camera()
 269 {
 270   if (!validate_sector_player()) return;
 271   log_info << "Camera is at " << Sector::current()->camera->get_translation().x << "," << Sector::current()->camera->get_translation().y << std::endl;
 272 }
 273
 274 void quit()
 275 {
 276   main_loop->quit();
 277 }
 278
 279 }
 280